AS215044 — OBT-AG OBT AG

AS215044 announces 2 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

OBT-AG is held by OBT AG.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames CH-OBT-20190924 and CH-OBT-20160614 registered to OBT AG.
• The AS announces 2048 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 43 observed neighbours; this ratio of limited address space against a high neighbour count indicates a transit or peering-heavy role rather than a large access network.
• Traffic from this AS consists of office workers and internal IT endpoints for a Swiss fiduciary, auditing, and consulting firm with approximately 300 employees across 12 offices.

Notable

• Registrants for both announced IPv4 prefixes are listed as OBT AG, agreeing with the AS holder.
• The address inventory is small and finely subdivided into two /22 blocks, consistent with an internal corporate estate segmented by site or function rather than a public-facing service provider.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.157.48.0/22
• 185.156.8.0/22
• 2a07:9840::/29

Upstream networks

• AS8758 Iway AG
• AS3303 Swisscom (Schweiz) AG
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS48362 Stadtwerke Feldkirch
• AS34019 Hivane Association
• AS1836 green.ch AG

Adjacent networks

• AS8758 Iway AG
• AS3303 Swisscom (Schweiz) AG
• AS6939 Hurricane Electric LLC
• AS34019 Hivane Association
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS1836 green.ch AG

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 11 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-IWAYCH, AS-RETN-ACTUAL-V4, AS-RETN-ACTUAL-V6, AS-UDOS, AS215044:AS-OBT-AG, AS3303:AS-SWCMLOCAL, AS42476:AS-SWISSIX, AS42476:AS-SWISSIX-CONNECTED, AS42476:AS-SWISSIX-V6.

Internet exchanges

• SwissIX — Zurich, Switzerland